-36-
Troubleshooting
PC/AV
SUDIO
SW
IC5001
AV BOARD
AUDIO BOARD
MAIN BOARD
Q5007
SP901
SPEAKER
L
R
15
3
2
4
16
12
16
13
12
16
14
4
12
4
6
8
1
3
2
8
10,11
1
13
2
12
14
Q5008
PC/AV-SW
Q1801
AUDIO
OUTPUT
IC001
BUFFER
IC851
DAC
IC431
I/O
EXPAND
.
IC1804
I/O
EXPAND
.
IC1803
I/O
EXPAND
.
IC1806
SYSTEM
CONTROL
&
SCAN CONV.
IC301
A
UDIO IN
A
UDIO
OUT
PC L
PC R
AV L
AV R
L
R
VOL
AUDIO
DAC
SDATA
SCLK
DAC
SDATA
SCLK
MUTE
MUTE
Q5041
Q5001
Q5003
Q5002
Q5004
Q5042
BUS
1. Check that sound volume control signal is correct.
Pin 4 of IC001
2. Check that audio signal is observed at pin 2 of
IC001.
3. Check the MUTE signal at pin 3 of IC001.
Pin 3 of IC001.........................................Mute-On: H
4. Check that Vcc-v12V) is applied at pins 1
and 9 of IC001.
AUDIO BOARD
1. Check that the PC/AV switching signal is correct.
Pins 10 and 11 of IC5001 .............................. AV : L
PC : H
2. Check that audio signal is observed at following
points.
Pins 11-12(PC)/13-14(AV) of K10B/K50B
3. Check that the MUTE signal is correct.
Pin 5 of K5A ...........................................Mute-On: H
4. Check that the MUTE signal is correct.
Pin 12 of IC1803 .................................... Mute-On: L
5. Check that the PC/AV switching signal is correct.
Pin 16 of IC1804 ............................................ AV : L
PC : H
MAIN BOARD
NO SOUND
Содержание PLC-XW10
Страница 40: ... 40 TP561 S H B INTPUT TP571 TP1571 S H B OUTPUT TP505B TP506B S H B OUTPUT ...
Страница 42: ... 42 IC Block Diagrams AN5265 AUDIO OUTPUT IC001 FA5332M Power Factor Control IC01 ...
Страница 43: ... 43 IC Block Diagrams CXA2111R LCD Driver IC401 PW164 10RK System Control Scan Converter IC301 ...
Страница 44: ... 44 CXD3503R White Uniformity Compensation IC471 IC Block Diagrams M62358FP DAC IC431 ...
Страница 46: ... 46 IC Block Diagrams IDT71V016S RAM IC811 CXA2016S Sync Separator IC1021 ...
Страница 47: ... 47 IC Block Diagrams MC10H351ML IC1501 LM76CHMX Thermal Sensor IC1831 IC1832 ...
Страница 49: ... 49 IC Block Diagrams TC4053BF Switching IC5001 ...
Страница 50: ... 50 SAA7114H Digital Video Processor IC5101 IC Block Diagrams ...
Страница 73: ...MP6 XW1000 Ref No Part No Description Ref No Part No Description 73 Electrical Parts List ...
Страница 76: ...MP6 XW1000 Mechanical Parts List 76 45 45 45 48 47 62 ...
Страница 77: ...MP6 XW1000 77 Mechanical Parts List 63 22 48 69 45 45 45 45 21 48 ...
Страница 80: ...Feb 2001 2000 SI Printed in Japan SANYO Electric Co Ltd ...